HF's rankings have always been amateurish and not worthy of any respect; the sooner more people realize that the better. Thankfully there's more information out there now, and more publications doing prospect rankings, so they're being exposed.
An example of how full of crap they are that some others may have seen: during the OHL playoffs, someone from "HF staff" posted in the Strome thread claiming to have inside information that he was battling an injury, that the truth would come out after the playoffs, and that's why his production fell off. When called out on it after the season ended and Strome said he in fact wasn't injured, the HF guy backpedaled, claimed Strome had "an issue" that wasn't an injury, that it was now now top secret and would never be disclosed. Yeah right, buddy, as if anyone's going to believe that.
So yeah, pretty much the people doing these rankings are just a bunch of fanboys who spend even more time on HF than most of us and formed a little "cool kids" club so they could feel important. I wouldn't mind this at all if they just kept to themselves, but they spread misleading information and try to influence the wider community, so I have zero respect for them.